The value of f(2) is -2 ⇒ 1st answer
Step-by-step explanation:
The form of the quadratic function is;
f(x) = ax² + bx + c, where
- a is the coefficient of x²
- b is the coefficient of x
- c is the numerical term
- x is the domain of the function and f(x) is the range of the function
∵ f(x) = -5x² - x + 20
- f(2) means value f(x) at x = 2
∵ x = 2
- Substitute x in the function by 2 to find f(2)
∵ f(2) = -5(2)² - (2) + 20
∴ f(2) = -5(4) - 2 + 20
∴ f(2) = -20 - 2 + 20
∴ f(2) = -2
The value of f(2) is -2
Learn more:
You can learn more about the function in brainly.com/question/12363217
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Answer:21
Step-by-step explanation: you multiply f times x to equal 21
1)
1: It's a function
2: It's not a function
3: It's a function
4)
4: It's not a function
5: It's a function
6: It's a function
Hope I did it right and helped you ^.^
Answer:
Step-by-step explanation:
2
